基于主動差分吸收光譜系統(tǒng)獲取大氣顆粒物光學(xué)特性研究
[Abstract]:Based on the active differential absorption spectroscopy remote sensing technology, a new spectral method for obtaining aerosol particles near the ground is carried out under the condition of clean atmospheric environment and reference optical path design technology. Aiming at the inherent wide band characteristics of the active differential absorption spectrum system with broadband xenon arc lamp as the light source, the optical thickness model of the analytical particles is established, and the optical properties of the atmospheric particles are obtained. Finally, the optical thickness of aerosol particles during the measurement period is obtained by external field experiment, and then the Angstrom wavelength index and turbidity coefficient, as well as atmospheric visibility data are obtained by logarithmic linear regression. The active differential absorption spectroscopy system measures the total absorption characteristics of the atmosphere in the optical path range to obtain the average level of particles in the monitoring area, which is more representative and valuable for further application.
【作者單位】: 淮北師范大學(xué)物理與電子信息學(xué)院;中國科學(xué)院安徽光學(xué)精密機械研究所環(huán)境光學(xué)與技術(shù)重點實驗室;
【基金】:國家自然科學(xué)基金(Nos.41475017,41275027)資助~~
【分類號】:X513
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